// Copyright (C) 2022 Huawei Device Co., Ltd.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package utils

import (
  "log"
  "os"
)

const (
  flag     = log.Ldate | log.Ltime | log.Lshortfile
  preInfo  = "[INFO]"
  preWarn  = "[WARN]"
  preError = "[ERROR]"
)

var (
  Info    *log.Logger
  Warning *log.Logger
  Error   *log.Logger
)

func InitLog(exPath string) {
  logFile, err := os.OpenFile(exPath+"/statistics.log", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
  if err != nil {
    log.Printf("open Log file failed：%v", err)
  }
  Info = log.New(logFile, preInfo, flag)
  Warning = log.New(logFile, preWarn, flag)
  Error = log.New(logFile, preError, flag)
}
